Cryosurgical instrument



FIG. 1 is a perspective view of the cryosurgical instrument, with a rotatable valve operating lever in a first position.

FIG. 2 is a side elevation view of the cryosurgical instrument of FIG. 1 with the valve operating lever in a second position.

FIG. 3 is a front elevation view of the cryosurgical instrument of FIG. 1 with the valve operation lever shown solid in the second position and in phantom in a third and fourth position.

FIG. 4 is a top plan view of the cryosurgical instrument of FIG. 1 with the valve operating lever in the second position; and,

FIG. 5 is an bottom plan viewof the cryosurgical instrument of FIG. 1 with the valve operating lever in the second position. 

I claim the ornamental design for a cryosurgical instrument, as shown and described. 